The world's largest national flag, made up of Khadi cloth, has been installed in ______ on the occasion of the 152^nd birth anniversary of Mahatma Gandhi on October 02, 2021:

Leh, Ladakh

The correct answer is Option (4) - Leh, Ladakh

The world's largest national flag, made up of Khadi cloth, has been installed in Leh, Ladakh, on the occasion of the 152nd birth anniversary of Mahatma Gandhi on October 02, 2021.